Improvement in windmills



G. B, DEAN. Windmill.

Patented March 12, 1878.

ATTORNEYS.

N. PEIERS. Pi OTO-UTHQGRAPHER. WASHINGTON. Dr C.

UNITED STATES PATENT OFFICE;

GEORGE B. DEAN, OF LAMOILLE, ILLINOIS, ASSIGNOR TO HIMSELF AND MATTHEWBUHLER, OF SAME PLACE.

Specification forming part of Letters Patent No. 201,166, dated March12, 1878; application filed I January 15, 1878.

To all whom it may concern:

Be it known that I, GEORGE B. DEAN, of Lamoille, in the county of Bureauand State of Illinois, have invented a new and Improved Windmill, ofwhich the following is a specification:

In the accompanying drawing, Figure 1 represents a side elevation,partly in section, of my improved windmill. Fig. 2 is a top view, partlyin horizontal section, of the same; showing the wheel in positionparallel to the vane; and Fig. 3 is a front view of the wheel, showingthe construction of the same in detail.

Similar letters of reference indicate corresponding parts.

The object of this invention is to furnish an improved windmill, forpumping and other purposes, that is constructed almost entirely of iron,with the exception of the wheel and vane, in a simple, cheap, anddurable manner, and so as to dispense with the use of heavy andcomplicated turn-tables, oil-boxes, and joints.

The invention consists of a wheel whose shaft turns in a horizontal boxof a horizontally-supported and swinging sleeve, that is stopped in onedirection by a bottom ear or extension of T shape, forming contact withthe vane-arm at right angles thereto by the brake, brake-arm, andlever-guard. The motion of the wheel is transferred by a crankdisk androd to the pump-rod, and the wheel adjusted at any angle to the vane, toregulate its speed, by a bell-crank-lever connection of a center rodwith a crank-arm of the revolving sleeve.

Referring to the drawing, A represents a wind-wheel that is constructedof radial wings secured to an exterior circle of a spider-frame, A, ofradial arms and solid center sockets of the wheel-shaft. The inner endsof the wings are united at some distance from the shaft, and connectedby a stiffening brace-ring concentric thereto. I

The shaft of the wind-wheel A revolves in a horizontal box, B, that iscast in one piece with a horizontal sleeve, B, supported by cross-strapsa on an upright tube, G, revolving in bearings of the mill-frame. Thevane D swings also, by a suitable bearing, 1), on the tube 0, thehorizontal sleeve B resting on the bearing of the vane. A brace-rod, d,extends from the arm of the vane in upward direction to asleeve-support, d, of the tubular pumprod E, which latter is moved upand down inside of the supporting-tube G by a pivot-rod connection, 0,with the crank-disk c of the wheel-shaft.

The position of the wheel at any suitable angle to the vane is regulatedby a connecting-rod, f, that extends from a treadle or lever, F, at thelower part of the mill-frame, through the tubular p'ump-rod,.to somedistance above the same, and connects by collars or stops at the upperend with a fulcrumed angular or bell-crank lever, f whose lower arm isunited by a rod or link, f, to a fixed crank-arm, f of thehorizontallyswinging sleeve B. The bell-crank lever f 1 is fulcrumed toa vertical support or standard, g, of the vane, and the lowerarm of thesame guided in a guard device, 9, of the standard 9, said guard deviceretaining the wheel, when in position, either at right angles to thevane or parallel thereto. The guard and standard are connected by anextension-rod, 9 with the braced sleeve 01, so as to stiffen thestandard and secure the rigid position of guard and lever-fulcrum.

The revolving disk of the wheel-shaft is toothed or notched at thecircumference, and thrown against a friction-brake, G, that is attachedby a brake-rod, G, to the arm of the vane. The friction-brake is appliedto the crank disk and wheel, when the latter is in position, 'sidewiseof the same, so as to stop the mill entirely. When the wheel is exposedto the full power of the wind, at right angles to the vane, it isretained in this position by the guard bearing on the bell-crank lever,and by a T-shaped ear or extension, h, of the lower cross-strap a of thesleeve B, which extension fits into a groove, h, ofthe vane-arm. Theextension h forms an additional stop for the wheel, when it is thrownout of sail, by bearing against the brake-arm G.

In this latter case a threefold stop for the wheel is obtained-namely,the brake,- the guard, and the brake-rod and extension-rod. Thus areliable construction of the wheel is obtained, which is brought closerto'its hori- 2 solace zontal and vertical shafts than in other windmillconstructions, and-Which transmits thereby its full power in anyposition to the pumprod. The pump-rod receives a direct up-anddownmotion from the crank-Wheel without being cramped, so as to eifectuallyaccomplish the steady Working of the mill. 7

Having thus described my invention, what I claim as new, and desire tosecure byLetters Patent, is-

1. A s an improvement in windmills, the combination of the revolvingWheel, horizontally-movable sleeve, having horizontal box,

and separately-swinging vane, with mechan-' ism to set the wheelparallel to, or at right angles, or at any other angle to the vane,substantiallyas and for the purpose set forth.

2. The combination of the horizontallymovable sleeve B, havingwheel-shaft-supporting box 13, upper crank-arm f and lower ear orextension h, with the vane D, a lever or treadle' acted bell-cranklever, f and a guard device, 9 of the same, substantially as specified.I

3. The horizontally-movable sleeve B, being cast in one piece with thehorizontal wheelshaft box B, and having a lower ear or extension, h, incombination with the revolving Wheel-shaft, having pump-operatingcrankwheel e, and with a friction-brake, G, and fixed brake-rod G of thevane-arm, substantially as and for the purpose set forth,

GEORGE B. DEAN.

Witnesses:

F. M. HOWARD, I J 01m JEFFERIES.

